db_perlvdb: fix compilation warning

> db_perlvdb.c: In function 'db_perlvdb_bind_api':
> db_perlvdb.c:98:24: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
>  dbb->replace          = perlvdb_db_replace;
>                        ^

(cherry picked from commit dbae2561720c97200d8e58e1e6c408a943e3c07b)
(cherry picked from commit 0c04b6f8b7f532147e03c1c4bb706e4a6501ab35)

src/modules/db_perlvdb/perlvdbfunc.c

@@ -202,7 +202,8 @@ int perlvdb_db_insert(const db1_con_t* h, const db_key_t* k, const db_val_t* v,
 /*
  * Just like insert, but replace the row if it exists
  */
-int perlvdb_db_replace(const db1_con_t* h, const db_key_t* k, const db_val_t* v, const int n) {
+int perlvdb_db_replace(const db1_con_t* h, const db_key_t* k, const db_val_t* v,
+		const int n, const int un, const int m) {
 	return perlvdb_db_insertreplace(h, k, v, n, PERL_VDB_REPLACEMETHOD);
 }
 

src/modules/db_perlvdb/perlvdbfunc.h

@@ -48,7 +48,8 @@ void perlvdb_db_close(db1_con_t* h);
 int perlvdb_use_table(db1_con_t* h, const str* t);
 
 int perlvdb_db_insert(const db1_con_t* h, const db_key_t* k, const db_val_t* v, const int n);
-int perlvdb_db_replace(const db1_con_t* h, const db_key_t* k, const db_val_t* v, const int n);
+int perlvdb_db_replace(const db1_con_t* h, const db_key_t* k, const db_val_t* v,
+		const int n, const int un, const int m);
 int perlvdb_db_delete(const db1_con_t* h, const db_key_t* k, const db_op_t* o,
 		const db_val_t* v, const int n);
 int perlvdb_db_update(const db1_con_t* h, const db_key_t* k, const db_op_t* o,